Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh trung » thanh trung, hanh trang, manh trung
hieu manh » hieu nganh, dieu hanh, hien hanh
trung cap » truong cao, trung tam
dung cong » dung trong
cap dung » ap dung, cao dung, chan dung
cong van » cong vang, cong san, song van
van hang » van khang, van hoang, van thang
hang dau » hang va, hang tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (((chieu sang) OR (chieu xanh)))) - hanh trung cap dung cong van hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (((chieu sang) OR (chieu xanh)))) - hanh trung cap dung cong van hang dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (((chieu sang) OR (chieu xanh)))) - hanh trung cap dung cong van hang dau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (((chieu sang) OR (chieu xanh)))) - hanh trung cap dung cong van hang dau*.